Machine for the manufacture of narrow-neck glassware.



N0. 687,597. Patented Nov. 26, I90l.

c. E. BLUE.

MACHINE FOR THE MANUFAGTUBE 0F NARROW NECK GLASSWARE.

. (Application filed Aug. 4 1900.)

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Patented Nqv. '26, I90l.

C. E. BLUE. I MACHINE FOR THE MANUFAIITUBE 0F NARROW NECK GLASSWARE.

(Apblication filed Aug. 4, 1900.1

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UNITED STATES PATENT OFFICE.

CHARLES EDWIN BLUE, OF WHEELING, WEST VIRGINIA.

. MACHINE FOR THE MANUFACTURE OF NARROW-NECK GLASSWARE.

SPECIFICATION forming part of Letters Patent No. 687,597, dated November26, 1901. Application filed August 4, 1900. Serial No. 25,899. (Nomodel.)

To all whom it may concern.-

Be it known that I, CHARLES EDWIN BLUE, a citizen of the United States,residing at Wheeling, in the county of Ohio and State of West Virginia,have invented new and useful Improvements in Machines for theMannfacture of N arrow-Neck Glassware, of which the following is aspecification.

My invention relates to improvements in machines for the manufacture ofnarrowneck glassware, and pertains to a machine ineluding an invertedpress-mold with a yielding removable bottom and an upright blowmold, allof which will be fully described hereinafter.

In the accompanying drawings, Figure 1 is an edge elevation of a machineembodying my invention, the press-mold being shown in vertical section.Fig. 2 is a front elevation, the press and blow molds being shown invertical section. Fig. 3 is a detail view show ing the stops forlimiting the oscillation of the press-mold.

Referring now to the drawings, A is a base, from which projects astandard B. An in- Verted press-mold C is supported by this standard Bin any suitable manner and may be either a non-reversible or areversible pressmold, as desired. As here shown, it is a reversiblepress-mold and is supported through the medium of a pin or bolt D, whichpasses loosely through the standard B and has its inner end screwed intoa suitable mold-lug E.

This mold-lug E is provided with the oppositely-projecting pins,shoulders, or projections F, which are adapted to engage with the pins,shoulders, or projections G extending from the adjacent face or side ofthe standard B and which serve to limit the oscillating movement of thepress=mold when it is oscillated to reverse its former position. One ofthe lugs, pins, or shoulders G serves, through the medium of one of thepins F, to limit the movement of the mold in one direction and the otherset of pins serves to limit the mold when turned in the other direction,as illus trated in Fig. 3. A plunger-rod H moves through a suitableguiding-arm I and carries aplunger J at its upper end, which is adaptedto enter the press-mold and to form a blank which will blow a finishedarticle with an evenly-formed bottom.

K is a plunger-ring which is adapted to co act with the mouth of themold O for the pur a row-neck mold the mouth of the mold is too narrowto permit the molten glass to be passed therethrough to the interior ofthe mold for forming the blank, and hence the bottom end of the mold isopen and a removable bottom provided therefor, whereby the bottom may beremoved to permit free access thereto for the ready placing of the glasswithin the mold.

In the formation of narrow-neck bottles a very narrow or slender plungeris necessary, for the reason that the mouth of the narrowneck mold willonly permit a slender plunger to pass therethrough. Also in themanufacture of all glass articles the charging of the mold withglassware so far as the amount of glass supplied thereto is concerned isguess work, and hence uneven quantities of glass are supplied to themold in the several charges thereof. It is found that owing to theslender ness of the plunger a slight variation in the amount of moltenglass fed to the mold will cause a very large variation in the depth atwhich the plunger can enter the mold, for the plunger is stopped as soonas the mold is filled by the glass and plunger combined. Hence theVariation in the charges of glass to the mold causes a large variationin the distance that the plunger is moved within the mold, and theconsequence is unevenly-blown bottoms.

The bottom L is made yielding for the purpose of permitting the plungerto enter the mold always a predetermined distance, and a weighted leverM accomplishes this result, one end of the lever being pivotallyconnected at the point N with the standard B and the opposite end of thelever carrying a suitable weight P. The weight is of such size and sopositioned upon the lever M that it will hold the bottom to positionagainst movement during the pressing operation until the mold has becomefilled, when the further movement of the plunger will cause the bot tomL to retract against the pressure of the said weighted lever.

Projecting upward from the leverM is a bar Q, which slides through anarm R, projecting from the upper end of the standard B, and this arm Ris provided with a gravitylocking eccentric S for the purpose of lookingthe said bar and in turn holding the bottom L to its retracted position.A standard a also projects from the base A and carries a suitableopen-and-shut blow-mold b, and a blow head or ring a is adapted to coactwith the upper end of the mold for the purposeof blowing the pressedblank to a finished form.

Attention is directed to the fact that the two parts of the press-mold Oare separately pivoted through the medium of suitable pins or pivots d,whereby the bottom L may enter the mold without interference from thepivotal connection of the two parts of the mold, which could not be thecase if the two parts of the mold were hinged upon a single pin.

In the operation of my invention the plunger is carried to its downwardlimit of movement, and hence withdrawn from the mold through the mediumof any suitable handleas, for instance, a handle e, connected to theplunger=rod and extending therefrom. The removable bottom L is thenwithdrawn from the press-mold by an upward pressure upon the lever M,when the locking-eccentric S will hold it in this elevated position, asshown in dotted lines, Fig. 1. A charge of molten glass is thendeposited within the press-mold, the removable bottom carried toposition within the press-mold, and the plunger then inserted within themold. As soon as the mold becomes filled the further movement of theplunger will cause a retraction of the bottom L for the purposesheretofore explained. The pressed blank is then removed from thepress-mold and placed within the blow-mold, and in accomplishing thisthe press-mold may or may not be oscillated for the purpose of carryingthe pressed blank to an upright position, as may be desired or foundmost convenient. I prefer to have the press-mold reversible,as beforestated,whereby the blank can be carried to an upright positioncorresponding to the position of the blow-mold, though this is notessential to the essence of my present invention.

Having thus described myinvention, what I claim, and desire to secure byLetters Pat ent, is

1. In a machine for the manufacture of glassware, the combination of aninvertible press-mold, a removable bottom therefor disconnected with thesaid mold and movable out of line of travel of the said mold when beinginverted, and an upright blow-mold.

2. In a machine for the manufacture of glassware, the combination of aninvertible press-mold having a yielding and removable bottom, and anon-invertible upright blowmold. a

3. In a machine for the manufacture of glassware, the combination of aninvertible press-mold having an open bottom end, and a freely-movableweighted and removable bottom for said mold.

4:. In a machine for the manufacture of glassware, the combination of aninvertible press-mold, a removable bottom disconnected with thepress-mold, and a locking member independent of the movement of the saidmold for holding the said bottom in its removed position.

5. In a machine for the manufacture of glassware, the combination of aninverted press-mold having a movable bottom, means for automaticallymoving the bottom into op- 8o erativeposition, and a locking member forholding the said bottom in its moved position.

6. In a machine for the manufacture of glassware, the combination of aninverted press mold having a depressed verticallymovable bottom, and alocking member for holding said bottom in its moved position.

7. A machine for the manufacture of glassware comprising an invertedpress-mold having a removable bottom, an independent up right blow-mold,an upwardly-acting plunger for said press-mold and a downwardly-actingblow-head for the said blow-mold, the blowhead being independent andacting irrespective of the said removable bottom and plunger.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

, CHARLES EDWIN 'BLUE. Witnesses:

M. V. BLUE, W. V. HOGE, Jr.

